Sheet metal lattice beam supported roof - has trapezoid skin and underlay profiling incorporated as beam chords (OE 15.7.80)

摘要

The roof for a building is designed for mechanical strength. Profiling in the sheet metal of the skin runs in the direction of the span width of the pref. lattice roof supports, and there is a similarly profiled underlay sheet. Both roof skin and underlay have trapezoid profiling, and they themselves embody the upper or lower chords of the roof beams. There can be cross beams with vertical bars forming the uprights of adjacent beams and chords flush to the sheets.